161989380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{128563}}^1$

素因数の和:128585

約数の個数: 72

約数和(自身を含む): 561567552

約数和(自身を除く): 399578172

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 128563, 257126, 385689, 514252, 642815, 771378, 899941, 1157067, 1285630, 1542756, 1799882, 1928445, 2314134, 2571260, 2699823, 3599764, 3856890, 4499705, 4628268, 5399646, 5785335, 7713780, 8099469, 8999410, 10799292, 11570670, 13499115, 16198938, 17998820, 23141340, 26998230, 32397876, 40497345, 53996460, 80994690, 161989380]

約数ペア:

[(1, 161989380), (2, 80994690), (3, 53996460), (4, 40497345), (5, 32397876), (6, 26998230), (7, 23141340), (9, 17998820), (10, 16198938), (12, 13499115), (14, 11570670), (15, 10799292), (18, 8999410), (20, 8099469), (21, 7713780), (28, 5785335), (30, 5399646), (35, 4628268), (36, 4499705), (42, 3856890), (45, 3599764), (60, 2699823), (63, 2571260), (70, 2314134), (84, 1928445), (90, 1799882), (105, 1542756), (126, 1285630), (140, 1157067), (180, 899941), (210, 771378), (252, 642815), (315, 514252), (420, 385689), (630, 257126), (1260, 128563)]